(The longer the time it takes to occupy a unit, the higher the percentage will be.)Property Insurance: A good measure to use is $10 for each $1,000.00 of purchase or ARV.Rental Rates: Zillow and other online sites may have listed homes for rent.

I'm a numbers girl, so I love the percentage rules like the one you mentioned.  

Great questions Rob,Depending on the percentage you are investing into a project usually dictates how much control you can secure.  

Allocations based on anything other than percentage of ownership breach the one-class-of-stock rule and are not allowable in an S corporation.S corporation shareholders must be of the same class, except for the ability to hold voting and nonvoting shares.

A small percentage buy right away but  a larger percentage takes time and follow up.

But I'd like to know how somebody might go about structuring the equity/profits percentages based on what both parties bring to the table.  

I bailed on a deal once because my contract had a contingency for a fixed residential mortgage at a certain percentage, but the property only qualified for commercial financing.  

I don't know anyone that's built an entire business out of it but I do know a couple of agents who refer out a significant percentage of their leads for a referral fee.

Thus I think it has no value to anyone but an experienced mining company.Another play would be to try to lease for a base price plus a percentage of gross.

What percentage of the whole (if possible to know within reason) did they buy, and when they decide to sell, how will it impact pricing (more inventory on the market).